package com.bzgwl.mybatis_plus.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.web.FilterInvocation;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import javax.servlet.*;
import java.io.IOException;

@Service
public class MySecurityFilter extends AbstractSecurityInterceptor implements Filter {
    @Autowired
    private FilterSourceMetadataSource filterInvocationSource;
    @Autowired
    private MyAccessDecisionManager myAccessDecisionManager;
    @Autowired
    private AuthenticationManager authenticationManager;
    @PostConstruct
    public void init(){
        super.setAuthenticationManager(authenticationManager);
        super.setAccessDecisionManager(myAccessDecisionManager);
    }
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        FilterInvocation fi = new FilterInvocation( request, response, chain );
        invoke(fi);
    }
    public Class<? extends Object> getSecureObjectClass(){
        return FilterInvocation.class;
    }
    public void invoke( FilterInvocation fi ) throws IOException, ServletException {
//        System.out.println("............filter  invoke..............");
        InterceptorStatusToken token = super.beforeInvocation(fi);
        try{
            fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
        }finally{
            super.afterInvocation(token, null);
        }
    }
    @Override
    public SecurityMetadataSource obtainSecurityMetadataSource(){
        return this.filterInvocationSource;
    }
    public void destroy(){
    }
    public void init( FilterConfig filterconfig ) throws ServletException {
    }
}
